Dynamic scanning type paper money breakage rate recognition instrument and its working method
A dynamic scanning and breakage rate technology, applied in instruments, scientific instruments, measuring devices, etc., can solve the problems of high recognition cost, low recognition rate, efficiency and low accuracy, and achieve simple recognition algorithm, high recognition accuracy, simple structure
Inactive Publication Date: 2008-11-19
SHANDONG UNIV
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Problems solved by technology
Manual methods and measuring rulers mainly rely on subjective judgments, which have low efficiency and accuracy and are prone to misjudgment
The computer software processing method needs to be equipped with auxiliary equipment such as CCD cameras or scanners, which makes the use and recognition cost high, and the image-based processing method is easily affected by conditions such as color changes and stains of banknotes, and the recognition rate is low. , the recognition rate does not match the cost
Method used
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[0035] A dynamic scanning banknote breakage rate recognizer, including a cover plate, a casing, a mechanical part, a light-emitting diode (LED) array 3, a photoelectric sensor 4, a voltage comparator 5, a control part, and a user interface. The mechanical part includes a light-emitting diode Array sliding bracket 16, photoelectric sensor device sliding bracket 17, glass plate 12, guide rail 13 and transmission belt 14, it is characterized in that light-emitting diode array 3 is installed on the LED array sliding bracket 16 and is fixed in the cover plate, photoelectric sensor device 4 Installed on the sliding bracket 17 of the photoelectric induction device and fixed in the casing, the above two sliding brackets 16, 17 are respectively positioned on the two mutually parallel guide rails 13 in the cover plate and the casing, and can move along the guide rail 13; The control part is made up of microprocessor 6, H-bridge drive circuit and stepper motor, microprocessor 6 is electri...
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Disclosed is a dynamic scanning type paper money damaged rate recognition instrument, which comprises a mechanical part, a light-emitting diode (LED) array, a photoelectric induction device, a voltage comparator, a microprocessor, an H-bridge drive circuit, a step motor, etc., the instrument also includes a control part and a user interface, the mechanical part includes a light-emitting diode array sliding support, a photoelectric induction device sliding support, a glass plate, guide rails and a driving belt, the LED array is mounted on the LED array sliding support, the photoelectric induction device is arranged on the photoelectric induction device sliding support, and the two sliding supports are respectively located on the two parallel guide rails in a cover plate and a casing and can move along the guide rails; the microprocessor is in electrical connection with the H-bridge drive circuit and the step motor for driving the step motor to rotate so as to put the two sliding supports along with the light-emitting diode array and the photoelectric induction device in synchronized parallel motion. The recognition instrument has the advantages of simple structure, low cost, simple identification algorithm and high recognition accuracy.
Description
technical field [0001] The invention relates to a dynamic scanning banknote breakage rate recognition instrument and a working method thereof, which belong to the field of photoelectric technology. Background technique [0002] At present, the damage rate identification of banknotes basically relies on manual visual identification, measuring rulers, and the use of CCD cameras or scanners to generate banknote images, which are then processed and identified by specialized computer software. Manual methods and measuring rulers mainly rely on subjective judgments, which have low efficiency and accuracy and are prone to misjudgments. The computer software processing method needs to be equipped with auxiliary equipment such as a CCD camera or a scanner, which makes the use and recognition cost high, and the image-based processing method is easily affected by the color change and contamination of banknotes, and the recognition rate is low. , the recognition rate does not match the...
Claims
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IPC IPC(8): G01N21/956
Inventor 张德敬邢建平陈岗武华邱雪梅
Owner SHANDONG UNIV